A lacerating revenge-thriller... There is no warmth or wit in Sentinelle; it's an exercise in unsubtle retributive justice.

There's a lot to like here, if you're willing to explore a labyrinthine, sometimes unwelcoming platform to find it.

While it's relatively short at 80 minutes -- which means it can be watched to just pass time without too much commitment -- Sentinelle still feels like another half-baked work that suffers from a poorly written script and generic fight scenes.

For Olga Kurylenko, Sentinelle should be a welcomed stepping stone into action stardom.